A Potentiometer has 10 wires each of 1 metre length and the total resistance is 20`Omega`. Find the resistance to be connected to the driving battery of emf 2 volts to produce a potential drop of 1 `muV` per millimetre. (Graph sheet is not required).

A potentiometer has 10 wires each of 1 meter length and the total resistance is 20Omega . Find the resistance to be connected to the driving battery of emf 2 volts to produce a potential drop of 1 mu V per millimeter.

A potentiometer of 20 Omega has 10 wires each of 1 metre length and the total resistance to be connected to the driving battery of emf 2 volts to produce a potential drop of 1muV per millimetre . (Graph sheet is not required ) .

A potentiometer wire has length 4m and resistance 8Omega the resistance that must be connected in series with the wire and an accumulaterof emf 2 V so as to get a potential gradient 1 mV ,per cm on the wire is

A resistance of 12 Omega is connected with a battery of emf 1.5volt to have 0.1A current. What is the intemal resistahce of the battery?

The resistance of a potentiometer wire of length 10m is 20 ohm. A resistance box and a 2 volt accumulator are connected series with it. Resistance required to be introduced in the box to have a potential drop of one microvolt per millimeter of the potentiometer wire will be

1 amp current flows thorugh a wire of resistance 5 Omega per 35 min. Find the amount of heat produced in it.

A potentiometer wire has a length 10m and a resistance of 4 ohm. A cell of emf 2V and a resistance box are connected in series with it. Calculate the resistance to be introduced in the box, so as to get a potential gradient of 0.1Vm^-1 .

A silver wire has a resistance of of 2.1 Omega at 27..5^@C and a resistance of 2.7 Omega at 100^@C . Find out the temperature coefficient of resistivity of silver.

Emf of an electric cell is 2.1 V and its internal resistance is 0.1 Omega . When the two poles of the cell are connected with an external resistance, a potential difference of 2.08 V is obtained. Determine the value of the external resistance.